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-rw-r--r--packages/instant/src/components/asset_amount_input.tsx41
-rw-r--r--packages/instant/src/components/instant_heading.tsx2
-rw-r--r--packages/instant/src/components/scaling_amount_input.tsx (renamed from packages/instant/src/components/amount_input.tsx)37
-rw-r--r--packages/instant/src/components/scaling_input.tsx101
-rw-r--r--packages/instant/src/containers/selected_asset_amount_input.ts2
5 files changed, 131 insertions, 52 deletions
diff --git a/packages/instant/src/components/asset_amount_input.tsx b/packages/instant/src/components/asset_amount_input.tsx
index c03ef1cf3..0b22c889c 100644
--- a/packages/instant/src/components/asset_amount_input.tsx
+++ b/packages/instant/src/components/asset_amount_input.tsx
@@ -7,33 +7,62 @@ import { ERC20Asset } from '../types';
import { assetUtils } from '../util/asset';
import { util } from '../util/util';
-import { AmountInput, AmountInputProps } from './amount_input';
+import { ScalingAmountInput } from './scaling_amount_input';
import { Container, Text } from './ui';
// Asset amounts only apply to ERC20 assets
-export interface AssetAmountInputProps extends AmountInputProps {
+export interface AssetAmountInputProps {
asset?: ERC20Asset;
onChange: (value?: BigNumber, asset?: ERC20Asset) => void;
+ startingFontSizePx: number;
+ fontColor?: ColorOption;
}
-export class AssetAmountInput extends React.Component<AssetAmountInputProps> {
+export interface AssetAmountInputState {
+ currentFontSizePx: number;
+}
+
+export class AssetAmountInput extends React.Component<AssetAmountInputProps, AssetAmountInputState> {
public static defaultProps = {
onChange: util.boundNoop,
};
+ constructor(props: AssetAmountInputProps) {
+ super(props);
+ this.state = {
+ currentFontSizePx: props.startingFontSizePx,
+ };
+ }
public render(): React.ReactNode {
const { asset, onChange, ...rest } = this.props;
return (
<Container>
- <AmountInput {...rest} onChange={this._handleChange} />
+ <Container borderBottom="1px solid rgba(255,255,255,0.3)" display="inline-block">
+ <ScalingAmountInput
+ {...rest}
+ startWidthCh={3.5}
+ endWidthCh={5}
+ fontSizePx={this.state.currentFontSizePx}
+ onChange={this._handleChange}
+ />
+ </Container>
<Container display="inline-block" marginLeft="10px">
- <Text fontSize={rest.fontSize} fontColor={ColorOption.white} textTransform="uppercase">
+ <Text
+ fontSize={`${this.state.currentFontSizePx}px`}
+ fontColor={ColorOption.white}
+ textTransform="uppercase"
+ >
{assetUtils.bestNameForAsset(asset)}
</Text>
</Container>
</Container>
);
}
- private readonly _handleChange = (value?: BigNumber): void => {
+ private readonly _handleChange = (value?: BigNumber, fontSize?: number): void => {
this.props.onChange(value, this.props.asset);
+ if (!_.isUndefined(fontSize)) {
+ this.setState({
+ currentFontSizePx: fontSize,
+ });
+ }
};
}
diff --git a/packages/instant/src/components/instant_heading.tsx b/packages/instant/src/components/instant_heading.tsx
index a36d35a93..defe3b8b1 100644
--- a/packages/instant/src/components/instant_heading.tsx
+++ b/packages/instant/src/components/instant_heading.tsx
@@ -69,7 +69,7 @@ export const InstantHeading: React.StatelessComponent<InstantHeadingProps> = pro
</Text>
</Container>
<Flex direction="row" justify="space-between">
- <SelectedAssetAmountInput fontSize="45px" />
+ <SelectedAssetAmountInput startingFontSizePx={45} />
<Flex direction="column" justify="space-between">
<Container marginBottom="5px">
<Text fontSize="16px" fontColor={ColorOption.white} fontWeight={500}>
diff --git a/packages/instant/src/components/amount_input.tsx b/packages/instant/src/components/scaling_amount_input.tsx
index f6f562be8..a0b7b74af 100644
--- a/packages/instant/src/components/amount_input.tsx
+++ b/packages/instant/src/components/scaling_amount_input.tsx
@@ -8,34 +8,35 @@ import { util } from '../util/util';
import { ScalingInput } from './scaling_input';
import { Container, Text } from './ui';
-export interface AmountInputProps {
+export interface ScalingAmountInputProps {
+ fontSizePx: number;
+ startWidthCh: number;
+ endWidthCh: number;
fontColor?: ColorOption;
- fontSize?: string;
value?: BigNumber;
- onChange: (value?: BigNumber) => void;
+ onChange: (value?: BigNumber, fontSize?: number) => void;
}
-export class AmountInput extends React.Component<AmountInputProps> {
+export class ScalingAmountInput extends React.Component<ScalingAmountInputProps> {
public static defaultProps = {
onChange: util.boundNoop,
+ onFontSizeChange: util.boundNoop,
};
public render(): React.ReactNode {
- const { fontColor, fontSize, value } = this.props;
+ const { startWidthCh, endWidthCh, fontColor, fontSizePx, value } = this.props;
return (
- <Container borderBottom="1px solid rgba(255,255,255,0.3)" display="inline-block">
- <ScalingInput
- startWidthCh={3.5}
- endWidthCh={6}
- startFontSizePx={45}
- fontColor={fontColor}
- onChange={this._handleChange}
- value={!_.isUndefined(value) ? value.toString() : ''}
- placeholder="0.00"
- />
- </Container>
+ <ScalingInput
+ startWidthCh={startWidthCh}
+ endWidthCh={endWidthCh}
+ fontSizePx={fontSizePx}
+ fontColor={fontColor}
+ onChange={this._handleChange}
+ value={!_.isUndefined(value) ? value.toString() : ''}
+ placeholder="0.00"
+ />
);
}
- private readonly _handleChange = (event: React.ChangeEvent<HTMLInputElement>): void => {
+ private readonly _handleChange = (event: React.ChangeEvent<HTMLInputElement>, fontSize?: number): void => {
const value = event.target.value;
let bigNumberValue;
if (!_.isEmpty(value)) {
@@ -46,6 +47,6 @@ export class AmountInput extends React.Component<AmountInputProps> {
return;
}
}
- this.props.onChange(bigNumberValue);
+ this.props.onChange(bigNumberValue, fontSize);
};
}
diff --git a/packages/instant/src/components/scaling_input.tsx b/packages/instant/src/components/scaling_input.tsx
index ea0a925d2..a2c4ba342 100644
--- a/packages/instant/src/components/scaling_input.tsx
+++ b/packages/instant/src/components/scaling_input.tsx
@@ -17,47 +17,79 @@ export enum ScalingInputPhase {
export interface ScalingInputProps {
startWidthCh: number;
endWidthCh: number;
- startFontSizePx: number;
+ fontSizePx: number;
value?: string;
- onChange?: (event: React.ChangeEvent<HTMLInputElement>) => void;
+ onChange: (event: React.ChangeEvent<HTMLInputElement>, fontSize: number) => void;
fontColor?: ColorOption;
placeholder?: string;
}
-// Magic value obtained via trial-and-error
-const scalingRateToMaintainSameWidth = 0.1;
+
+export interface ScalingInputProps {
+ fixedWidthInPxIfExists?: number;
+}
+
export class ScalingInput extends React.Component<ScalingInputProps> {
public static defaultProps = {
onChange: util.boundNoop,
+ onFontSizeChange: util.boundNoop,
};
+ public state = {
+ fixedWidthInPxIfExists: undefined,
+ };
+ private _inputRef = React.createRef();
+ public static getPhase(startWidthCh: number, endWidthCh: number, value?: string): ScalingInputPhase {
+ if (_.isUndefined(value) || value.length <= startWidthCh) {
+ return ScalingInputPhase.Start;
+ }
+ if (value.length > startWidthCh && value.length <= endWidthCh) {
+ return ScalingInputPhase.Scaling;
+ }
+ return ScalingInputPhase.End;
+ }
+ public static getPhaseFromProps(props: ScalingInputProps): ScalingInputPhase {
+ const { value, startWidthCh, endWidthCh } = props;
+ return ScalingInput.getPhase(startWidthCh, endWidthCh, value);
+ }
+ public componentDidUpdate(prevProps: ScalingInputProps): void {
+ const prevPhase = ScalingInput.getPhaseFromProps(prevProps);
+ const curPhase = ScalingInput.getPhaseFromProps(this.props);
+ // if we went from anything else to end, fix to the current width as it shouldn't change as we grow
+ if (prevPhase !== ScalingInputPhase.End && curPhase === ScalingInputPhase.End) {
+ this.setState({
+ fixedWidthInPxIfExists: this._getInputWidthInPx(),
+ });
+ }
+ // if we end from end to to anything else, un-fix the width
+ if (prevPhase === ScalingInputPhase.End && curPhase !== ScalingInputPhase.End) {
+ this.setState({
+ fixedWidthInPxIfExists: undefined,
+ });
+ }
+ }
public render(): React.ReactNode {
const { fontColor, onChange, placeholder, value } = this.props;
- const phase = this._getPhase();
+ const phase = ScalingInput.getPhaseFromProps(this.props);
return (
<Input
+ ref={this._inputRef as any}
fontColor={fontColor}
- onChange={onChange}
+ onChange={this._handleChange}
value={value}
placeholder={placeholder}
- fontSize={this._calculateFontSize(phase)}
- width={this._calculateWidth(phase)}
+ fontSize={`${this.props.fontSizePx}px`}
+ width={this._calculateWidth()}
/>
);
}
- private readonly _calculateFontSize = (phase: ScalingInputPhase): string => {
- const { value, endWidthCh, startFontSizePx } = this.props;
- if (_.isUndefined(value) || phase !== ScalingInputPhase.End) {
- return `${startFontSizePx}px`;
- }
- const charactersOverMax = value.length - endWidthCh;
- const pixelsToReduceFontSizeBy = charactersOverMax * 2;
- const newFontSizePx = startFontSizePx - pixelsToReduceFontSizeBy;
- return `${newFontSizePx}px`;
- };
- private readonly _calculateWidth = (phase: ScalingInputPhase): string => {
+ private readonly _calculateWidth = (): string => {
+ const phase = ScalingInput.getPhaseFromProps(this.props);
const { value, startWidthCh, endWidthCh } = this.props;
if (_.isUndefined(value)) {
return `${startWidthCh}ch`;
}
+ if (!_.isUndefined(this.state.fixedWidthInPxIfExists)) {
+ return `${this.state.fixedWidthInPxIfExists}px`;
+ }
switch (phase) {
case ScalingInputPhase.Start:
return `${startWidthCh}ch`;
@@ -69,14 +101,31 @@ export class ScalingInput extends React.Component<ScalingInputProps> {
return `${startWidthCh}ch`;
}
};
- private readonly _getPhase = (): ScalingInputPhase => {
- const { value, startWidthCh, endWidthCh } = this.props;
- if (_.isUndefined(value) || value.length <= this.props.startWidthCh) {
- return ScalingInputPhase.Start;
+ private readonly _getInputWidthInPx = (): number => {
+ const ref = this._inputRef.current;
+ if (!ref) {
+ return 0;
}
- if (value.length > startWidthCh && value.length <= endWidthCh) {
- return ScalingInputPhase.Scaling;
+ return (ref as any).getBoundingClientRect().width;
+ };
+ private readonly _calculateNextFontSize = (
+ currentFontSizePx: number,
+ value: string,
+ startWidthCh: number,
+ endWidthCh: number,
+ ): number => {
+ const phase = ScalingInput.getPhase(startWidthCh, endWidthCh, value);
+ if (_.isUndefined(value) || phase !== ScalingInputPhase.End) {
+ return currentFontSizePx;
}
- return ScalingInputPhase.End;
+ const charactersOverMax = value.length - endWidthCh;
+ const pixelsToReduceFontSizeBy = charactersOverMax * 5;
+ const fontSize = currentFontSizePx - pixelsToReduceFontSizeBy;
+ return fontSize;
+ };
+ private readonly _handleChange = (event: React.ChangeEvent<HTMLInputElement>) => {
+ const value = event.target.value;
+ const { fontSizePx, startWidthCh, endWidthCh } = this.props;
+ this.props.onChange(event, this._calculateNextFontSize(fontSizePx, value, startWidthCh, endWidthCh));
};
}
diff --git a/packages/instant/src/containers/selected_asset_amount_input.ts b/packages/instant/src/containers/selected_asset_amount_input.ts
index 6cd39b855..1b5f3cd22 100644
--- a/packages/instant/src/containers/selected_asset_amount_input.ts
+++ b/packages/instant/src/containers/selected_asset_amount_input.ts
@@ -17,7 +17,7 @@ import { AssetAmountInput } from '../components/asset_amount_input';
export interface SelectedAssetAmountInputProps {
fontColor?: ColorOption;
- fontSize?: string;
+ startingFontSizePx: number;
}
interface ConnectedState {